Slot-switch.



No. 843,896 PATENTED FEB. 12, 1907. C. (L KORNS.

SLOT SWITCH.

APPLICATION FILED APR.11,1906.

3 SHEE TSSHBET 1v WITNESSES ITTOR/VEY.

rm: NORRIS PETERS can, WASHINGTON, n. c.

No-843,896. PATENTED FEB. 12, 1907. c. GKKORNS.

SLOT SWITGH.

APPLICATION FILED APR.11,1906;

' 3 SHEBTS-S1BET 2.

v WITNESSES INVENTUR m GC/fanz s.

' O BY A TTORNEY.

THE NORRIS PETERS 4:0,, wasmrmran, u. c.

PATENTED FEB. 12, 1907.

'0. 0. KORNS.

SLOT SWITCH.

APPLICATION FILED APRKII, 1906.

3 SHEETS-SHEET 3.

n4: NORRIS PETERS cm. WASHINGTON, a, c.

UNITE STAES narnn'r ornron.

CLARENCE O. KORNS, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR TO THE LORAINSTEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

SLOT=SWITCH.

Specification of Letters Patent.

Patented Feb. 12, 1907.

Application filed April 11, 1906. Serial No. 311,044.

T0 at whom it may concern.-

Be it known that I, CLARENCE O. KORNS, of Johnstown, in the county ofOambria and State of Pennsylvania, have invented a new and usefulImprovement in Slot-Switches, of which the following is a full, clear,and exact description, reference being had to the accompanying drawings,which form a part of this specification.

This invention has relation to improvements in slot-tongue supporting,operating, and retaining mechanism.

The object of this invention is to so arrange the slot-tongue, itssupporting and operating mechanism, so as to avoid any opening in thestreet-surface of the structure of a greater width than the width of theslot and also to support the tongue in close proximity to the point,thereby relieving the strain from the heel of the tongue. It alsoprevents the pounding of the point below the surface of the street bythe street traffic.

Another object of this invention is that the plow of each car willremove the dirt from the point of the switch, thereby preventing anyaccumulation of dirt which would prevent the operation of the tongue.

Other features of my invention will hereinafter appear.

Referring to the accompanying drawings, in which- Figure 1 is a planview with the manholecovers removed. Fig. 2 is a transverse section onthe line 2 2 of Fig. 1. Fig. 3 is a simi lar view on the line 3 3. Fig.4 is a longitudinal section of the bare structure on the line 4 4 ofFig. 1. Fig. 5 is a detail perspective view of the point of theslottongue.

a a are the main or through rails; b T), the branch rails.

A is the main or through slot, and B the branch slot.

O is the rail-switch tongue, pivoted at c by means of the pin 0. Thisswitch may be of any desirable construction. D is the slotswitch tongue,pivoted at d by means of the pin d, which passes through the tongue andthe gusset-post (Z which is in turn supported on the yokes (Z and d. Thegusset-post (1 acts as a bed or hearing for the heel of the slottongueD. On the bottom of the tongue D and near the point thereof are theindents D and D for the purpose hereinafter specified.

F is a sector the periphery of which is machined concentric with thecenter thereof. Projecting from each end of the face of this sector Pand out of vertical alinement with each other are lugs f and f. Driveninto the hub of the sector F or otherwise secured thereto is the shaftf. The ends of this shaft are journaled in the yoke d and the bracket d,which is secured to the yoke d Loosely mounted on the shaft 0 is a leverE, having the arms E and E The shaft 0 is secured to the yokes d and d,and the lever E is held in its proper alinement on the shaft 6 by meansof the collars e a.

g is a pin which projects from a boss on the framework of the structure.Loosely mount ed on this pin g is the lever G, having the arms G and G Gis a socket in the end of the arm G in which is inserted the end of alever G for the purpose hereinafter specified.

Projecting from the rail-switch tongue O is a lug O. Secured to this lugis the rod C The other end of this rod is pivotally connected to the armG of the lever G. Pivotally connected to the arm G of the lever G andthe arm E of the lever E are the ends of the link H, and pivotallyconnected to the arm E of the lever E and the sector F are the ends ofthe link H.

Resting on the periphery of the sector F is the point of the slot-switchtongue D, the indents D and D being in line of movemnt with therespective projection f and f on the ends of the face of the sector F.The width of these projections ff is slightly less than the Width of theindents D and D so that the outer edge of the sector is beyond the outerline of the tongue D.

The operation is as follows: Presuming the switch is set for thestraight track, as shown in the drawings, and it is desired to shift itin order that the next car will take the branch track, the operator willinsert the lever G into the socket G and move the lever G to the left,thereby rocking the lever G, the arm G shifting the rail-switch tongue Othrough the medium of the rod O while the sector F will be shifted tothe extreme left through the following devices: arm G, link H, arms Eand E of the lever E, and link H. As can be seen from Fig. 2, there isconsiderable lost motion of the sector F before the projection f strikesthe tongue D to shift it to open the slot for the branch track.

This is done in order to get the proper clearance below the point of theslot-switch tongue for the plow carried by the cars. As can be seen inFig. 2, the conductonbars J are clear of the tongue-supporting sector Fwhen in either position. Both switch-tongues will be held in theirextreme positions by means of the weight of the sector F, as its centerof gravity is at a considerable distance from the center of oscillation.Therefore when the tracl -switch is thrown slightly beyond its centralpoint the weight of the sector will throw and retain the tongues attheir extreme positions.

I have illustrated this device in connection with one railswitcl1; but,if it is desired, it can be connected to a rail-switch of both rails bymerely duplicating the mechanism shown in the drawings.

Having thus described my invention, what I claim as new, anddesire tosecure by Let ters Patent, is

1. In a slot-switch, a tongue having an oscillating supporting andoperating member.

2. In a slot-switch, a tongue having a support for its heel, and anoscillating supporting and operating member for its point.

3. In a slot-switch, a tongue having an oseillating supportingandoperating member whose movement is greater than. the movement of saidtongue.

4. In a slot-switch, a tongue having a support for its heel, and anoscillating supporting and operating member for its point whose movementis greater than the movement of the tongue.

5. In a slot-switch, a tongue having an oscillating supporting andoperating member, and devices on the oscillating support to move thetongue from one side of the slot to the opposite side of said slot,substantially as set forth.

6. In a slot-switch, a tongue having an oscillating supporting andoperating member, devices on the support to move the tongue from oneside of the slot to the opposite side of said slot, the oscillatingsupport having a greater movement than the movement of the tongue.

7. In a slot-switch, a tongue having an oscillating supporting andoperating member, projections on the oscillating support to move thetongue from one position to the other position, and indents in thetongue to receive the projections on the oscillating support,substantially as set forth.

8. In a slot-switch, a tongue having an oscillating supporting andoperating member, projections on the oscillating support to move thetongue from one position to the other position, and indents in thetongue to receive the projections on the oscillating support, themovable support having a greater movement than the movement of thetongue.

9. In a slot-switch, a tongue having a movable support, devices on themovable support to move the tonguefrom one position to the otherposition, the center of gravity of the movable support passing beyondthe center in each position, for the purpose set forth.

10. In a railway switch mechanism, a slotswitch tongue having a movablesupport, devices on the movable support to move the slot-switch tongue,in combination with a track-switch, and connections between the movablesupport and the movable member of the traclnswitch.

11. In a railway switch mechanism, a slotswitch tongue having a movablesupport, projections on the movable support to shift the tongue, indentsin the tongue to receive the projections on the support in combinationwith a track-switch and connections between the movable support and thetrackswitch, for the purpose set forth.

12. In a railway switch mechanism, a slotswitch tongue having a movablesupport, de vices on the movable support to shift the slot-switchtongue, in combination with a track-switch tongue, operative connectionsbetween the movable support and the trackswitch tongue, the center ofgravity of the movable support passing beyond the center in eachposition, for the purpose set forth.

13. In a railway switch mechanism, a slotswitch tongue, supported on asector provided with projections to shift the tongue.

14. In a railway switch mechanism, a slotswitch tongue supported on asector provided with projections to shift the tongue in combination witha track-switch and connections between the sector and the trackswitchfor the purpose set forth.

15. In a railway switch mechanism, a slotswitch tongue, supported on asector provided with projections to shift the tongue, the center ofgravity of the sector passing beyond the center in each position.

16. In a railway switch mechanism, a slotswitch tongue, supported on asector provided with projections to shift the tongue in combination witha track-switch and connections between the sector and the trackswitchforthe purpose set forth.

17. In a railway switch mechanism, a slotswitch tongue, supported on asector provided with projections to shift the tongue, the center ofgravity of the sector passing beyond the center in each positionincombination with a track-switch and connections between the sector andthe track-switch for the purpose set forth.

In testimony whereof I have affixed my signature in presence of twowitnesses.

CLARENCE C. KORNS.

Witnesses:

\ Jesse B. HELLER,

I-I. WV. SMITH.

